Sanitization device for dental accessories

ABSTRACT

An external dental accessory sanitization device is configured for receiving and sanitizing a dental accessory, such as a brush, flosser, pic or other dental accessory. The sanitization device is configured to sanitize the dental accessory using one or a combination of ultraviolet light and/or sound waves. The device can be configured for sanitizing one or a plurality of dental accessories therein.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation in part (CIP) of U.S. Ser. No.13/952,558, filed Jul. 26, 2013, and titled “DENTAL DEVICE HAVING ANINTEGRATED SANITATION CHAMBER”;

which is a continuation in part (CIP) of U.S. Ser. No. 13/715,953, filedDec. 14, 2012, and titled “SANITIZING TOOTHBRUSH”;

the contents of each of which are hereby incorporated by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates generally to oral care devices. More particularlythe invention relates to a dental sanitization device configured toemploy one or a combination of ultraviolet (UV) light radiationsanitation and/or sound frequency sanitation as a means for sterilizinga dental accessory housed within a housing portion of the dentalsanitization device.

2. Description of the Related Art

Toothbrushes are well known oral care devices which are recommended bydentists and oral care professional worldwide. Proper oral hygiene hasbeen shown to dramatically reduce the occurrence of dental cavities,gingivitis, and bad breath. However, it is conventionally known throughcurrent medical research, that without proper sanitation and/orsterilization of at least the bristles of a toothbrush after use, theywill contain bacteria, germs, viruses, and dirt which can contribute tothe spread of disease and sickness.

As a conventional solution, many health care professionals recommendplacing the toothbrush in a case or housing when not in use to reducethe chance of bacteria and germs from reaching the bristles. However,one shortfall of this approach is that the housing itself may harborbacteria if not cleaned or sanitized properly as well. Further, wettoothbrush bristles housed in a contained area, sometimes in the dark,are a perfect breeding ground for bacteria and pathogens already presenton the brush. Therefore, in order to prevent increased propagation ofsuch pathogens while in the housing, and to actually reduce thepopulation in the brush head, there is a need for communicating somedirect sanitation and sterilization to the toothbrush itself.

Prior art has shown many other attempts to provide toothbrush sanitationand/or sterilization means through the employment of UV lightirradiation. Ultraviolet germicidal irradiation (UVGI) is a knowndisinfection method which employs ultraviolet (UV) light at sufficientlyshort wavelength to kill microorganisms such as bacteria and germs.Although UVGI methods are especially preferred for sterilization means,without proper irradiation of substantially the entire surface of themajority of bristles and the brush head, colonies of bacteria and otherpathogens remain which can re-propagate. Additionally, because light isdirectional and subject to a blockage which creates shadows, withoutirradiation from a majority of angles some pathogens will not beproperly subjected to light sanitation. Consequently, a secondary meansof sanitation of the bristles and brush head which will reach around thecurves and serpentine paths of brush bristles which harbor suchpathogens and either remove them or seriously reduce their population.Further, conventional toothbrushes are generally configured to be heldbetween the thumb and fingers affording a very small area to grip orfrictionally engage the handle and resulting slippage.

As a result, there is a continuing unmet need for a toothbrushsanitation device which solves these and other problems of brushsanitizers of the current state of the art. Such a device should providea compact, storable, transportable and easy-to-use apparatus whichprovides illumination which strikes the brush and bristles at a maximumnumber of angles to provide maximum sanitizing. Such a brush optionallyshould provide a secondary means for sanitization which is not subjectto direct line contact and which will wrap around bristles and pathwaystherebetween to rid or at least reduce pathogen populations. Such atoothbrush should provide for enhanced gripping by employing the housingas an enlarged grip for the handle.

The forgoing examples of related art and limitation related therewithare intended to be illustrative and not exclusive and they do not implyany limitations on the invention described and claimed herein. Variouslimitations of the related art will become apparent to those skilled inthe art upon a reading and understanding of the specification below andthe accompanying drawings.

SUMMARY OF THE INVENTION

The device herein disclosed and described provides a solution to theshortcomings in prior art and achieves the above noted goals through theprovision of a toothbrush device employing a chamber having means forprojecting light in a sanitizing wavelength such as ultraviolet (UV)light radiation combined with a reflective surface area of thesanitizing chamber which enhances reflection and multiplies the numberof angles of communication throughout the chamber of UV light wavesgenerated or projected into the chamber. The chamber itself is formedwithin the axial cavity of a housing which is removably engageable withthe brush, to position the brush head within the sanitizing chamber. Ofcourse, in other embodiments, the sanitizing chamber might also beformed to engage existing toothbrushes or other dental accessories as ameans for sanitizing them. When employed with an engageable handlemember, the housing may be engaged as an extension of the handle of thetoothbrush and provide a larger circumference gripping area for the userto hold the handle.

In accordance with one preferred mode of the device, the housing isformed with sidewalls defining an exterior surface opposite an axiallydisposed sanitizing interior cavity. At least one aperture is formed inthe sidewall and is positioned to be in operative communication with theinterior cavity.

The interior cavity employs UV radiation means, such as one or aplurality of UV bulbs or LED's which communicate UV light. For instanceultraviolet (UV) rays with a wavelength between 100 nm and 280 nm with aparticularly preferred wavelength of 254 nm will effectively killbacteria, viruses, yeast, molds and algae which might otherwise multiplyon the brush head. It is believed the UV radiation breaks through theouter membranes of such organisms, destroying or inactivating their DNAthus preventing them from reproducing. Such light sanitization safelyand effectively sanitizes the brush and brush head in the axial chamber.

The light source producing light in the UV ranges of 100 nm to 260 nmcommunicates such into the sanitizing interior cavity which ispreferably lined circumferentially with a reflective angled curvilinealsurface. This angled circumferentially disposed surface causesreflections and re-reflection of communicated UV light. Thus directlyradiated and reflectively radiated light rays from the UV source impactthe brush head and bristles at many different angles concurrently, toremove pathogens which otherwise would thrive in hidden areas of thebristles.

The housing additionally includes means for powering the UV radiationmeans, such as a rechargeable battery, or other suitable means forstorage of electrical power sufficient to power the UV light or LED.Additionally preferred is a pulsing of the UV light from the irradiationsource from a lower energy radiation to a higher energy or much brighterradiation of light, to generate sequential higher energy pulses of UVlight which will reflect into more hidden areas of the brush head fromsubsequent reflecting from the reflective angled surfacing.

Optionally, but preferable as a secondary sanitation means, soundfrequency sanitizing may be employed concurrently with the lightsanitization. Such may be accomplished by the communication of soundwaves into the sanitizing chamber from a means for sound generation inthe proper frequencies. For instance, Ultrasonic waves ranging from 20to 100 kHz in frequency have been successfully used as a surfacecleaning technique in the medical and precision processing industriesfor a number of years. Various pathogens suffer damage and may beremoved at other frequencies which may be ascertained from literature onthe subject however the current favored mode is noted above.

Means for generation and communication of sonic waves into thesanitization chamber to provide the sound frequency sanitization, wouldbe a frequency wave tone generator which would receive power fromonboard battery power or other sound frequency generators which willproduce sound in the above noted frequency ranges. A microchipcontroller may be employed to sequentially move the sound generation tothe individual frequencies adapted to kill the desired pathogens forperiods of time before moving to other individual frequencies.

Although certain wavelength and frequency ranges are herein provided forillustrating effective sanitization by means of light and sound, itshould be understood that the dental device can be configured to emitany light wavelength, or any sound frequency, with minor variation incomponent selection, to accomplish the objective of sanitizing thedental accessory or instrument. Accordingly, the scope of the inventionis not to be limited with respect to the above illustrative examples.

In one as-used mode for sanitization, the toothbrush portion, ifemployed in combination, is positionable in an engagement to thehousing, such that the housing is employed as a handle for operating thetoothbrush in a conventional manner. In a second as used mode orsanitization mode, the toothbrush portion is reversible in itsengagement with the housing, such that the toothbrush head havingbristles thereon is positionable in registered engagement within theinterior cavity of the housing, and adjacent the reflective surfaces andin communication with the UV radiation and/or sound frequencysanitization means communicated therein. Activation of the UV lightsource and/or sound frequency generation source can be provided by anoperable switch on the exterior of the housing. The switch may be on atimer as needed for conserving battery power.

In an alternative embodiment, a sanitation device for sterilization ofone or more dental accessories therein is provided. The sanitationdevice comprises: a base having one or more attachment members, each ofthe attachment members being configured to engage with one of the dentalaccessories for maintaining an orientation thereof about the base; acover having a top portion and one or more side walls extendingtherefrom, wherein the side walls are configured to engage a peripheryof the base and form an engagement therebetween; the cover when coupledto the base in a closed-position forms an interior volume therebetween,the interior volume defining a sanitation chamber; and the devicefurther comprising one or more of: at least one ultraviolet lightemitting source disposed within the sanitation chamber; or an ultrasonicsound frequency generator configured to communicate ultrasonic energywithin the sanitation chamber.

With respect to the above description, before explaining at least onepreferred embodiment of the herein disclosed invention in detail, it isto be understood that the invention is not limited in its application tothe details of construction and to the arrangement of the components inthe following description or illustrated in the drawings. The inventionherein described is capable of other embodiments and of being practicedand carried out in various ways which will be obvious to those skilledin the art. Also, it is to be understood that the phraseology andterminology employed herein are for the purpose of description andshould not be regarded as limiting.

As such, those skilled in the art will appreciate that the conceptionupon which this disclosure is housing may readily be utilized as a basisfor designing of other structures, methods and systems for carrying outthe several purposes of the present disclosed device. It is important,therefore, that the claims be regarded as including such equivalentconstruction and methodology insofar as they do not depart from thespirit and scope of the present invention.

As used in the claims to describe the various inventive aspects andembodiments, “comprising” means including, but not limited to, whateverfollows the word “comprising”.

Thus, use of the term “comprising” indicates that the listed elementsare required or mandatory, but that other elements are optional and mayor may not be present. By “consisting of” is meant including, andlimited to, whatever follows the phrase “consisting of”. Thus, thephrase “consisting of” indicates that the listed elements are requiredor mandatory, and that no other elements may be present. By “consistingessentially of” is meant including any elements listed after the phrase,and limited to other elements that do not interfere with or contributeto the activity or action specified in the disclosure for the listedelements. Thus, the phrase “consisting essentially of” indicates thatthe listed elements are required or mandatory, but that other elementsare optional and may or may not be present depending upon whether or notthey affect the activity or action of the listed elements.

The objects features, and advantages of the inventive embodiments, aswell as the advantages thereof over existing prior art, which willbecome apparent from the description to follow, are accomplished by theimprovements described in this specification and hereinafter describedin the following detailed description which fully discloses theinvention, but should not be considered as placing limitations thereon.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated herein and form a partof the specification, illustrate some, but not the only or exclusive,examples of embodiments and/or features. It is intended that theembodiments and figures disclosed herein are to be consideredillustrative rather than limiting. In the drawings:

FIG. 1 shows a view of the device comprising a toothbrush portion and ahousing portion employing UV radiation means, in a first as used mode,with the brush positioned in an engagement with the housing such thatthe housing is employed as a handle affording a larger circumference foran enhanced grip during conventional operation of the brush.

FIG. 2 shows the toothbrush portion disengaged from the housing.

FIG. 3 shows the toothbrush portion being reversed in its positionrelative the housing.

FIG. 4 shows the device in another preferred as used sanitizing mode,wherein the toothbrush portion has been reversed in its engagement withthe housing, such that the toothbrush head is communicated into thesanitizing cavity of the housing having surrounding mirrored orreflective walls for light from a UV radiation means and/or soundfrequency sanitization from a means for sound generation at theappropriate frequencies noted.

FIG. 5 shows another preferred mode of the device being a three-piecemode having a housing, and removably engageable toothbrush portion andbattery. It should be noted that the housing and power source may beemployed separately with a non-provided toothbrush in another mode ofthe device.

FIG. 6 shows the device in accordance with another embodiment, whereinthe device comprises a device handle forming housing with a hollowedcavity wherein an interior portion thereof is configured with asanitation chamber for sanitizing one or more dental accessories.

FIG. 7 shows the device of FIG. 6 with a cavity door being opened forpermitting access to the interior cavity of the sanitation chamber.

FIG. 8 shows a front view of the device according to the embodiment ofFIGS. 6-7.

FIG. 9 shows a side view of the device according to the embodiment ofFIGS. 6-8.

FIG. 10 shows a bottom view of the device according to the embodiment ofFIGS. 6-9.

FIG. 11 further shows the interior cavity of the sanitation chamber ofthe device in accordance with the embodiment of FIGS. 6-10, the interiorcavity having a reflective surface disposed on an interior wall thereof,and a light bulb positioned within the interior cavity for providing anamount and frequency of light sufficient for sanitization therein.

FIG. 12 further shows a sanitization cycle of the device in accordancewith the embodiment of FIGS. 6-11, the sanitization cycle comprisingemission of ultraviolet light within the sanitation chamber, the lightbeing reflected about the interior wall surface, thereby sanitizing anydental accessories contained therein.

FIG. 13 shows an external sanitization device configured to sanitize adental accessory using a combination of ultraviolet light and ultrasonicenergy; the device is configured for a single dental accessory and isgenerally configured for personal use or as a travel product.

FIG. 14 shows an alternative embodiment to that shown in FIG. 13,wherein the sanitization device is configured to sterilize a dentalaccessory using only ultrasonic energy.

FIG. 15 shows an external sanitization device having a plurality ofdental accessory engagement members, each of the engagement membersbeing configured to communicate ultrasonic energy or vibrations to ahead portion of an attached dental accessory, and the sanitizationdevice is further configured to communicate ultraviolet light within thesanitation chamber volume of the sanitization device.

FIG. 16 shows a top view of an external sanitization device inaccordance with the embodiments herein, the device being configured forsterilizing two dental accessories, wherein each of the two dentalaccessories are positioned adjacent to an ultraviolet light emittingsource, and a useable side of each dental accessory is furtherconfigured to face the ultraviolet light source for sanitizing.

FIG. 17 shows a top view of an external sanitization device inaccordance with the embodiments herein, the device being configured forsterilizing a plurality of dental accessories, wherein each of theplurality of dental accessories is positioned adjacent to an ultravioletlight emitting source, and a useable side of each dental accessory isfurther configured to face the ultraviolet light source for sterilizing.

FIG. 18 shows an external sanitization device in accordance with theembodiments herein, the device further includes a charging station andassociated docking port for receiving and charging a powered dentalinstrument.

FIG. 19 shows an external sanitization device in accordance with theembodiments herein, the device comprises an ultraviolet light emittingsource and a bath containing a liquid for communicating ultrasonicenergy to one or more dental accessories being sterilized therein.

FIG. 20 shows a sanitization device configured to receive a dentalaccessory at a base portion of the device, and further configured tocommunicate ultrasonic energy from the base to a head portion of thedental accessory.

FIGS. 21(A-B) show a base configured to engage a toothbrush device withbuilt-in sanitization chamber, or an external device; the base isconfigured to communicate ultrasonic frequency to the attached device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

In this description, the directional prepositions of up, upwardly, down,downwardly, front, back, top, upper, bottom, lower, left, right andother such terms refer to the device as it is oriented and appears inthe drawings and are used for convenience only; they are not intended tobe limiting or to imply that the device has to be used or positioned inany particular orientation.

Now referring to drawings in FIGS. 1-5, wherein similar components areidentified by like reference numerals, there is seen in FIG. 1 a view ofthe device 10 in a first as used mode with the toothbrush portion 12provided. The device 10 includes a toothbrush portion 12 and a housing20. The toothbrush portion 12 includes an elongated member forming ahandle 15 having a head end 14 having bristles 19, all combining toyield a toothbrush.

The handle 15 has an engagement end 16, including means for removableengagement of the handle 15 to extend axially from an engagement to thehousing 20, such as cooperative engagement components positioned on eachof the housing 20 and handle 15, such as mating threads 18, or africtional engagement, or other means for engagement of the distal endof the handle 15, to the housing 20, to allow the housing 20 to functionas an extension of the handle 15 and provide and enlarged gripcircumference for the handle 15. So engaged the user can more easilyhold the device 10 assembled with the toothbrush 12 extending axiallyfrom one end of the housing 20 which is gripped in the user's hand.

The housing 20 has a substantially cylindrical elongated body 21 havingan axially oriented interior cavity 24 defined by an interior surface ofone or a plurality of sidewalls 22. The interior cavity 24 has asanitizing chamber 27 formed by the reflective or mirrored interiorsidewall 22 terminating at an end wall 30, and at an opening 26providing a communication from exterior to the housing 20 into thesanitizing chamber 27. It is preferred that the opening have acircumference just slightly larger than a circumference of the handle 15to allow passage of the head therethrough and to thereby minimize theescape of any UV light and/or sound from the sanitizing chamber 27.

Additionally, there is included a means for UV radiation positioned tocommunicate UV light into sanitizing chamber 27 portion of the cavity24, such as a plurality of UV lights 35 provided by bulbs or LED'sgenerating UV light in the ranges between 100-280 nm. As can be seen,the curved reflective surface along the length of the sanitizing chamber27 and at both ends of the sanitizing chamber 27 combined withminimizing loss through provision of an opening just slightly largerthan the handle 15, provides means for vectoring the light generated bythe means for UV illumination such as the LED or UV light 35, toward thebrush head at an infinite number of angles depending on the reflectionfrom multiple surfaces. Further the opening 26 being sized just largerthan the circumference of the handle 15 minimizes loss.

Means for electrical power for the means for UV radiation and/or a soundfrequency generator, 33 may be provided by a rechargeable battery 32operatively engaged with the housing 20, and electrically engaged to themeans for UV illumination such as UV lights 35 and/or wave tonegenerator 33 which provides a means for ultrasonic or soundsterilization.

Means for removable engagement of the toothbrush portion 12 to thehousing 20 is provided by a cooperative fastening components on each ofthe housing 20 and the handle 15 such as a threaded engagement of theengagement handle 15 to an interior threaded portion 28 of the housing20 at or near the open end 26 of the housing 20. So engaged, the handle15 extends axially from the housing 20 which has the largercircumference to provide and enhanced gripping area for the hand of theuser. Although threaded engagement is one preferred means of removableengagement, other means for removable engagement may be employed and areanticipated, for example, the removable engagement means can be snapfits, frictional engagement, a bayonet style engagement of matingcomponents, or other suitable means.

As noted, in a first depicted as used mode in FIG. 1, the toothbrush 12is provided for use in combination with a housing 20 and the toothbrushportion 12 may be engaged with the housing 20 such that the housing 20is employable as an extension of the handle 15, with an enlargedcircumferential grip, for conventional operation of the toothbrush 12.As noted earlier however, the housing 20 can be manufactured andemployed as a stand-alone device, configured to engage with and sanitizeother toothbrushes already owned or manufactured through employment ofthe novel sanitizing chamber 27 and combination of UV and soundfrequency sanitization.

In yet another preferred as used mode in FIG. 3 and FIG. 4, thetoothbrush 12 is reversible in its engagement with the housing 20 asshown. As can be seen, once disengaged from the housing 20 as shown inFIG. 2, the toothbrush 12 is reversible such that the head end 14 of thetoothbrush 12 can be communicated into the central area of the cavityemployed as the sanitizing chamber 27. As shown, so inserted light andsound if employed, is reflected at an infinite number of multiple anglesto allow penetration to all areas of the bristles as well as thecircumferentially around the inserted toothbrush 12.

A switch 34 can be provided to allow the user to control electricalpower to the UV lights 35 for UVGI sanitation and/or disinfection of thetoothbrush 12 or to the sound frequency generator 33 for soundsanitation. The switch may allow for independent or concurrent use of UVand/or sound sanitation at the noted frequencies. As noted andpreferred, sanitation is significantly enhanced by coating or otherwiseforming the interior surface 25 of the sanitizing chamber 27 within theinterior cavity, with a reflective material and angular circumferentialsections, reflect the UV light within the sanitizing chamber 27 forimproved sterilization. The curved ends and central areas of thereflective portion of the sanitizing chamber 27 also serve to reflectsound waves at an ultimate the number of different angles depending onnumber and angle of each reflection. Additionally, a tab 17 engaged tothe toothbrush 12 portion of the device 10, allows the user to grasp thetoothbrush 12 and rotate it out of its engagement the housing when inthe second as used mode or sanitizing position.

FIG. 5 shows yet another preferred mode of the device 10, similar to theprevious mode however having a removably engageable battery component32. In this mode the battery component 32 can more be seen as easilyremoved and so as to be charged on a charger docking component (notshown) for an efficient recharge as needed. Currently, means forremovable engagement are provided by a threaded distal end portion 36 ofthe housing 20 and complimentary threaded portion 38 on the batterycomponent 32. However, it is noted that other means for removableengagement such as a bayonet mount, or frictional engagement, or otherengagement means as would occur to those skilled in the art may beemployed, and which are anticipated.

In an exceptionally preferred feature of the current mode, is theemployment of one or a plurality of circumferentially reflecting curvedmirror 40 portions of the reflective surface positioned withinsanitizing chamber 27 of the housing 20. The mirror 40 portions aresubstantially concave and curve around a 90 degree angle to provide ameans for communicating the light emitted from the UV lights 35, and thesound from the sound frequency generator 33, to all interior surfaceareas 25 within the sanitizing chamber 27, due to the reflective qualityof such, further enhancing UV sterilization. In addition, the mirror 40portions can be formed of suitable material to provide enhanced meansfor sound frequency reflection, such as a hardened polymer, forreflecting the emitted sound frequencies from the frequency wave tonegenerator or sound frequency generator 33 to all interior surface areas25 within the sanitizing chamber 27.

In another embodiment, a dental device comprises a handle portion and anaccessory portion. The handle portion forms a housing with an interiorcavity and an external gripping surface. The interior cavity is sealedwith a hinged door forming at least a portion of the housing wall, thehinged door configured to open for providing access to within theinterior cavity, and further configured to close during a sanitationcycle. The interior cavity forms a sanitation chamber by way of areflective interior wall and at least one of an ultraviolet light sourceor a sound wave transducer configured to sanitize one or more objects ordental accessories within an interior volume thereof. In this regard,the dental accessory may comprise a brush, flosser, pic, massager,tongue cleaner, or other accessory, and is configured for removableattachment with the device. The dental accessory is further configuredwith a size sufficient to permit containment of the accessory within thesanitation chamber for undergoing one or more sanitation cycles therein.

Turning now to FIG. 6, a dental device comprises a handle portion 110and an accessory portion (116, FIG. 7) extending outwardly from thehandle portion 110. A brush accessory 120 is being shown and isremovably attached to the accessory portion 116 of the device; however,any dental accessory may be attached in accordance with this embodimentand a brush accessory is shown for purposes of illustration only. Thebrush accessory 120 extends from a bottom end 121 to a top end 122thereof, and a plurality of bristles 123 extend laterally from the topend of the brush accessory 120. The handle portion 110 comprises housing111 formed by a circumferential wall extending along a length of thehandle portion from a bottom end 113 to a top end 114 thereof. Thehousing 111 further defines an exterior gripping surface configured toenhance a user's grip of the device, and an interior cavity (131, FIG.7) within the housing forming a sanitation chamber for sanitation of oneor more objects therein. Here, the hinged access door 112 is being shownin a closed state, thereby sealing the interior volume of the sanitationchamber. A switch 115 or button, referred to as a “sanitation trigger”,is disposed about the housing and provides a mechanism for operating thesanitation chamber function. The sanitation trigger may be configured toselect up to any of a “first mode”, a “second mode”, or “OFF”. The firstmode may be associated with a first time-duration, a first lightintensity, or other pre-determined setting. The second mode may beassociated with a second time-duration that is distinct from the firsttime-duration, a second light intensity, or another pre-determinedsetting. In this regard, the dental device is configured for removableattachment of one or more dental accessories, and sanitation of the oneor more dental accessories within the sanitation chamber. The chamberdoor 112 provides improved access to internally housed objects.

FIG. 7 shows the dental device of FIG. 6 with the hinged chamber door112 configured in an open state. The hinged door 112 is configured toclose about the housing 111 with a tab 117 extending from the door beingconfigured to nest within a notch 118 of the housing for providing aflush surface when in the closed state. The sanitation chamber 131 isshown with the brush accessory 120 disposed therein. The sanitationchamber comprises a reflective interior wall 130 disposed on theinterior surface of the hinged door 112 and about a majority of theinterior surface of the sanitation chamber 131. The reflective interiorwall may comprise Mylar sheets, a metallic foil, a reflective coating,or other reflective material sufficient to reflect light about aninterior volume of the sanitation chamber otherwise referred to as theinterior cavity within the housing. The sanitation chamber furthercomprises at least one ultraviolet light emitting source 132, such as anultraviolet light bulb, light emitting diode, or other light emittingdevice configured to emit ultraviolet light within the sanitationchamber during a sanitation cycle. The accessory portion 116 of thedevice is more clearly shown, and is configured to receive and engage anaccessory such as a brush, flosser, tongue cleaner, pic, or other dentalaccessory.

FIG. 8 shows the dental device of FIGS. 6-7 in accordance with a frontview. The dental device may comprise one or more buttons 140 orswitches, collectively the “accessory trigger”, for operating the dentalaccessory, or the brush accessory as shown. Additionally, one or moreindicator lights 141 may be disposed on the handle portion 110 andadjacent to the buttons or switches for communicating a present mode orsetting of the accessory during an operation thereof. The brushaccessory 120 is shown having a plurality of bristles 123 disposed atthe top end and extending laterally.

FIG. 9 shows a side view of the dental device of FIGS. 6-8. The hingeddoor 112 may be configured near a rear side of the housing as shown.Alternatively, the hinged door can be positioned on a side of thehousing (not shown). It has been determined that the accessory trigger140 for operating the function of the accessory 120 may preferably bedisposed on a side opposite of the sanitation trigger 115 for operatingthe sanitation cycles of the sanitation chamber. Here, the accessorytrigger 140 is shown positioned near a front surface of the housing,whereas the sanitation trigger 115 is shown being positioned near a rearsurface of the housing opposite of the front surface. Such a physicalseparation of the individual triggers tends to prevent unintended use ofeach functional aspect of the device, thus preventing undesired orwasted energy from unwanted operations of the accessory or sanitationchamber. It should be noted that although shown in accordance with thispreferred architecture, the triggers may be positioned anywhere on thedevice.

FIG. 10 shows a bottom view of the dental device of FIGS. 6-9. Althoughan hourglass section is shown, the body portion may comprise a circular,triangular, oblong, or other shape as may be desired by a user forgripping and ergonomic performance. A bottom surface 150 may beconfigured to engage a charging dock with an electronic port disposedthereon. The sanitation trigger 115 is shown extending from a rear sideof the device.

FIG. 11 further illustrates the sanitation chamber 131 within the dentaldevice housing 111 in accordance with the embodiment of FIGS. 6-10. Thesanitation chamber 131 comprises at least one ultraviolet light source132 configured to emit ultraviolet light within the sanitation chamber,and a reflective inner wall surface 130 covering the inner door surfaceand the inner sanitation chamber wall surface. The hinged chamber door112 is configured to hingedly open about a length of the housing forproviding access to an interior volume of the sanitation chamber 131.The door also closes to a flush position for sealing the interior volumeof the sanitation chamber. A clasp, friction fit, or other component maybe provided for securing the hinged door in a closed state (not shown).The hinged chamber door may further comprise a tab 117 for engaging andopening the chamber door 112 from the closed state to an open state. Thetab 117 of the hinged door is configured to nest within the housingnotch 118 to form a flush surface for smooth gripping of the handleportion when in a closed state. A receptacle or similar component may beprovided within a bottom portion of the sanitation chamber for receivingone or more objects or accessories.

FIG. 12 illustrates the dental device in accordance with the embodimentof FIGS. 6-11. The brush accessory 120 is positioned within thesanitation chamber of the housing 111, the chamber door is in a closedstate, and an amount of ultraviolet light 160 is being emitted from theultraviolet source 132 and reflected about the interior reflective wall.During a sanitation cycle, bacteria and other pathogens are neutralizedand the dental accessory within the chamber during the sanitation cycleis sanitized for future use.

The dental device may be powered by a single power source, such as oneor more disposable batteries, one or more rechargeable batteries, orother commercially available power source. The dental device may beconfigured to recharge within a charging dock, or become engaged with apower cord, solar charged or other charging mechanism when embodied in arechargeable form.

In other embodiments, a sanitation chamber is configured to removablyattach with an existing toothbrush or other dental instrument. Thesanitation chamber comprises a housing configured to receive at least aportion of the dental instrument therein. The housing comprises anaperture for receiving the at least a portion of a dental instrument, aninterior sanitation chamber volume, an interior wall surface configuredto reflect light within the sanitation chamber volume, and a sanitizinglight emitting source such as a UV light emitting diode or other lightsource. In this regard, the sanitation chamber is configured to receiveat least a portion of a dental instrument, introduce a sanitizingexposure of light within the sanitation chamber and reflect the lightabout the sanitation chamber volume for sanitizing bacteria and otherpathogens within the sanitation chamber.

External Sanitization Device for Dental Accessories

In an alternative embodiment, an external sanitization device forsterilization of one or more dental accessories therein is provided. Thesanitization device comprises: a base having one or more attachmentmembers, each of the attachment members being configured to engage withone of the dental accessories for maintaining an orientation thereofabout the base; a cover having a top portion and one or more side wallsextending therefrom, wherein the side walls are configured to engage aperiphery of the base and form an engagement therebetween; the coverwhen coupled to the base in a closed-position forms an interior volumetherebetween, the interior volume defining a sanitation chamber; and thedevice further comprising one or more of: at least one ultraviolet lightemitting source disposed within the sanitation chamber; or an ultrasonicsound frequency generator configured to communicate ultrasonic energywithin the sanitation chamber.

Similar to the embodiments disclosed above, the external sanitizationdevice may utilize ultraviolet light emitted from an ultraviolet lightemitting source, such as UV light bulb or similar component.

Moreover, the external sanitization device herein may utilize anultrasonic sound frequency generator, such as an ultrasonic soundtransducer, or oscillating motor, to generate ultrasonic sound waves atfrequencies for killing microbes and other infectious agents. An exampleof a sound transducer may include an ultrasonic piezo transducer. It hasbeen shown that certain ultrasonic frequencies, such as those within therange of 20 KHz and 100 KHz, are effective at killing bacteria andpathogens. However, any sound frequency that either kills pathogens,viruses or bacteria, or assists in a sterilization process, may beimplemented in a similar fashion.

Each of the general features of the above embodiments may be integratedwith an external device for accomplishing the goal of sanitizing dentalaccessories using one or more of UV radiation and ultrasonic energy. Inthis regard, each of the UV radiation and ultrasonic energy, or acombination thereof, is capable of sterilizing the dental accessory bykilling bacteria and pathogens as described above.

Now referring to FIGS. 13-20 and the following descriptions, an externalsanitization device for sterilization of one or more dental accessoriesin accordance with several embodiments is herein described andillustrated.

FIG. 13 shows an external sanitization device configured to sanitize adental accessory using a combination of ultraviolet light and ultrasonicenergy; the device is configured for a single dental accessory and isgenerally configured for personal use or as a travel product. Thesanitization device 200A comprises a base 202 and a cover 201. The coverhas a top portion and a cylindrical side wall extending therefrom towarda rim of the cover, the rim of the cover is configured to engage with aperiphery of base 202 forming a seal between the cover and the peripheryof the base. A hollow volume between the cover and the base when in aclosed position forms a sanitation chamber. A dental accessory, such asa toothbrush accessory 250, is shown mated with an attachment member. Inthis regard, the dental accessory may comprise a notch 220 or othermeans for engaging the accessory with the attachment member. When theaccessory is engaged with the attachment member, the accessory can beconfigured for orientation about the base of the device. For example,the accessory can be oriented such that a head portion is facing theultraviolet light emitting source of the device for sanitizing theuseful portion of the accessory.

The attachment member can comprise a peg or volumetrically shaped formconfigured to engage with the notch of the accessory. The attachmentmember can be coupled to the ultrasonic sound frequency generator suchthat ultrasonic energy 231 is communicated through the dental accessoryfrom a body portion thereof to the head portion, such as the bristles ofa toothbrush accessory 250. Although a peg is shown and described, itwill be recognized by those with skill in the art that alternatives,such as a clasp, magnetic attachment means, and other implementationscan be incorporated without departing from the scope of the invention asclaimed.

In addition, the device of FIG. 13 shows an ultraviolet light emittingsource 210 configured to communicate ultraviolet light 211 within thesanitation chamber of the device. Thus, the dental accessory can besterilized by a combination of ultraviolet light and ultrasonic energy.

The cover 201 is shown comprising a reflective surface for reflectingthe ultraviolet light within the sanitation chamber. In practice,however, the device can alternatively comprise a clear, transparent, andnon-reflective cover.

FIG. 14 shows an alternative embodiment to that shown in FIG. 13,wherein the sanitization device 200B is configured to sterilize a dentalaccessory using only ultrasonic energy 231, or sound waves. Although theultrasonic sound frequency generator is shown positioned about the cover201, it should be noted that the generator can be alternativelyintegrated within the base 202. Moreover, the ultrasonic sound frequencygenerator can be coupled to the attachment member for directlycommunicating ultrasonic energy to the head of an engaged dentalaccessory.

FIG. 15 shows an external sanitization device having a plurality ofdental accessory attachment members, each of the attachment membersbeing configured to communicate ultrasonic energy or vibrations to ahead portion of an attached dental accessory, and the sanitizationdevice is further configured to communicate ultraviolet light within thesanitation chamber volume of the sanitization device.

In FIG. 15, the sanitization device 300 comprises a base 302 and a cover301 mated therewith. The cover 301 comprises a top portion at an apex ofthe illustrated dome shape cover, and a side wall forming the verticalportion of the dome shape. The side wall extends to mate with aperiphery of the base 302. A volume between the cover 301 and the base302 defines a sanitation chamber, wherein one or more dental accessoriesmay become sterilized using one or more of ultraviolet light radiationand/or ultrasonic energy. The device comprises a pair of attachmentmembers 330 positioned at the base and configured to engage a notch 320of a respective dental accessory 250. Each of the attachment members isconfigured to communicate vibrations 331 from an ultrasonic soundfrequency generator to an engaged dental accessory, and particularly ahead portion thereof. One or more ultrasonic sound frequency generatorscan be provided, with the one or more generators individually orcollectively coupled to each of the respective attachment members of thedevice. In addition, the device comprises an ultraviolet light emittingsource 310, such as a UV light bulb or similar means, the source beingpositioned about the base of the device. The ultraviolet light emittingsource is configured to communicate ultraviolet light 311 therefrom. Thedome is shown comprising a reflective surface for reflecting theultraviolet light 311 for reuse within the sanitization chamber.

FIG. 16 shows a top view of an external sanitization device inaccordance with the embodiments herein, the device being configured forsterilizing two dental accessories 250, wherein each of the two dentalaccessories 250 are positioned adjacent to an ultraviolet light emittingsource 310, and a useable side of each dental accessory is furtherconfigured to face the ultraviolet light source for sanitizing. In thisembodiment the base 302 may have an oblong shape, or having a lengthlonger than its width.

FIG. 17 shows a top view of an external sanitization device inaccordance with the embodiments herein, the device being configured forsterilizing a plurality of dental accessories 250, wherein each of theplurality of dental accessories 250 is positioned adjacent to anultraviolet light emitting source 310, and a useable side of each dentalaccessory is further configured to face the ultraviolet light source forsterilizing. In this embodiment the base 302 may have a circular shape.

FIG. 18 shows an external sanitization device 400 in accordance with theembodiments herein, the device further includes a charging station andassociated docking port 405 for receiving and charging a powered dentalinstrument 255. The device can comprise any style of power cord orbattery source for power, however the illustrated embodiment is depictedwith a standard plug adapter 403.

The device generally comprises a base 402 and a cover 401 coupledtherewith, an area between the cover and the base defining a sanitationchamber. The device further comprises two attachment members 430,wherein each attachment member 430 is configured to engage a respectivedental accessory 250 and maintain such in an upright position such thata useable portion of the accessory is oriented to face an ultravioletlight emitting source 410, such as an ultraviolet light. Although theaccessory is being shown oriented upright with respect to the base, itshould be recognized that the accessory can be oriented sideways, or atany angle, but ideally such that the accessory is positioned in a mannerfor sterilization of the useable portion, for example the bristles of atooth brush accessory should be oriented to face the UV light source.

Although the cover 401 of the device is shown as a transparent cover itshould be appreciated that a reflective cover may be provided forreusing or containing the ultraviolet light within the sanitationchamber of the device.

Although not illustrated in this figure, the device may comprise one ormore ultrasonic sound frequency generators for communicating ultrasonicenergy to the one or more contained dental accessories. As above, one ormore of the attachment members can be coupled to the ultrasonic soundfrequency generators, either independently or collectively.

FIG. 19 shows an external sanitization device 500 in accordance withanother embodiment, the device comprises an ultraviolet light emittingsource 510 and a bath containing a liquid 560 for communicatingultrasonic energy 531 from an ultrasonic sound frequency generator (notshown) to one or more dental accessories 250 being sterilized therein.The ultraviolet light emitting source 510 is shown emitting ultravioletlight 511 which is communicated through the bath. The liquid maycomprise water, alcohol, or other liquid suitable for communicatingultrasonic sound waves 531 and ultraviolet light 511.

FIG. 20 shows a sanitization device 600 configured to receive a dentalaccessory 250 at a base portion 602 of the device, and furtherconfigured to communicate ultrasonic energy 611 from the base to a headportion of the dental accessory. In this embodiment, an attachmentmember 630 is coupled to the base 602, and the ultrasonic energy sourceis housed within the base and coupled to the attachment member 630 suchthat when the accessory 250 is engaged with the attachment member, theresulting ultrasonic energy 611 is communicated from the base to theaccessory, and particularly to a head portion of the accessory such asthe bristles of a toothbrush as shown.

FIG. 21A shows a base 602 with an attachment member 630 disposedthereon, the attachment member is configured to engage a toothbrushdevice with a built in sanitization chamber. Moreover, the basecomprises at least one ultrasonic generator, the generator capable ofcommunicating ultrasonic energy through the attachment member to theengaged toothbrush device. In a preferred embodiment, the ultrasonicgenerator is configured to communicate ultrasonic energy through theattachment member and to the toothbrush accessory 250 within thesanitization chamber housing 111 of the dental device.

FIG. 21B is similar to the embodiment of FIG. 21A; however, FIG. 21Bshows an external sanitization device 200A being coupled to the base 602such that an ultrasonic frequency generator within the base isconfigured to communicate ultrasonic energy into the externalsanitization device 200A through an attachment member 630. Inparticular, a dental accessory 250 is shown having a notch 220configured to engage with the attachment member 630.

Thus, in various embodiments, a sanitization device for dentalaccessories is provided which utilizes one or more of ultrasonic soundenergy, or ultraviolet light, for sanitizing. Although preferredembodiments are illustrated, it will be recognized by those having skillin the art that certain variations of the disclosed features andfunctions described herein can be implemented in various alternativeembodiments which achieve substantially similar results. Accordingly,the descriptions and embodiments herein should not be considered aslimiting the invention as claimed.

Moreover, the various components of the device disclosed herein can beformed of conventional materials such as plastic or metal, however, canbe formed of any material suitable for the purposes set forth in thisdisclosure.

This invention has other applications, potentially, and one skilled inthe art could discover these. The explication of the features of thisinvention does not limit the claims of this application; otherapplications developed by those skilled in the art will be included inthis invention.

It is additionally noted and anticipated that although the device isshown in its most simple form, various components and aspects of thedevice may be differently shaped or slightly modified when forming theinvention herein. As such those skilled in the art will appreciate thedescriptions and depictions set forth in this disclosure or merely meantto portray examples of preferred modes within the overall scope andintent of the invention, and are not to be considered limiting in anymanner.

While all of the fundamental characteristics and features of theinvention have been shown and described herein, with reference toparticular embodiments thereof, a latitude of modification, variouschanges and substitutions are intended in the foregoing disclosure andit will be apparent that in some instances, some features of theinvention may be employed without a corresponding use of other featureswithout departing from the scope of the invention as set forth. Itshould also be understood that various substitutions, modifications, andvariations may be made by those skilled in the art without departingfrom the spirit or scope of the invention. Consequently, all suchmodifications and variations and substitutions are included within thescope of the invention as defined by the following claims.

We claim:
 1. A sanitization device configured for sterilization of oneor more dental accessories, the sanitization device comprising: a basehaving one or more attachment members, each of said attachment membersbeing configured to engage with one of said dental accessories formaintaining an orientation thereof about the base; a cover having a topportion and one or more side walls extending therefrom, wherein saidside walls are configured to engage a periphery of the base and form anengagement therebetween; said cover when coupled to the base in aclosed-position forming an interior volume therebetween defining asanitation chamber; and each of; at least one ultraviolet light emittingsource disposed within the sanitation chamber; and at least oneultrasonic sound frequency generator configured to communicateultrasonic energy within the sanitation chamber; wherein said attachmentmember is coupled to said ultrasonic sound frequency generator.
 2. Thesanitation device of claim 1, wherein said ultrasonic sound frequencygenerator is one of: an ultrasonic transducer or an ultrasonic motor. 3.A sanitization device configured for sterilization of one or more dentalaccessories, the sanitization device comprising: a base having one ormore attachment members, each of said attachment members beingconfigured to engage with one of said dental accessories for maintainingan orientation thereof about the base; a cover having a top portion andone or more side walls extending therefrom, wherein said side walls areconfigured to engage a periphery of the base and form an engagementtherebetween; said cover when coupled to the base in a closed-positionforming an interior volume therebetween defining a sanitation chamber;and one or more of; at least one ultraviolet light emitting sourcedisposed within the sanitation chamber; and at least one ultrasonicsound frequency generator configured to communicate ultrasonic energywithin the sanitation chamber; or a combination thereof; wherein saidattachment member is coupled to said ultrasonic sound frequencygenerator.
 4. The sanitization device of claim 3, said devicecomprising: at least one ultraviolet light emitting source disposedwithin the sanitation chamber; and at least one ultrasonic soundfrequency generator configured to communicate ultrasonic energy withinthe sanitation chamber.
 5. The sanitization device of claim 3, whereinat least one of said attachment members is configured to communicatesaid ultrasonic energy to a dental accessory engaged therewith.
 6. Thesanitization device of claim 3, wherein said ultrasonic sound frequencygenerator is coupled to said base.
 7. The sanitization device of claim3, wherein said ultrasonic sound frequency generator is coupled to saidcover.
 8. The sanitization device of claim 3, wherein said ultrasonicsound frequency generator is configured to communicate sound within thesanitation chamber at a frequency between 20 KHz and 100 KHz.
 9. Thesanitization device of claim 3, wherein each of said dental accessoriesis one of: a toothbrush, flosser, pic, massager, tongue cleaner, or acombination thereof.
 10. The sanitization device of claim 3, said devicecomprising: an ultraviolet light emitting source disposed about saidbase, and further comprising two attachment members disposed at saidbase, each of said attachment members being configured to engage withone of said dental accessories for maintaining an orientation thereofabout the base; wherein a first of said two attachment members isdisposed adjacent to said ultraviolet light emitting source andpositioned at a first side thereof; and wherein a second of said twoattachment members is disposed adjacent to said ultraviolet lightemitting source and positioned at a second side thereof opposite of thefirst side.
 11. The sanitization device of claim 10, wherein each ofsaid attachment members is configured to orient the respective dentalaccessory engaged therewith such that a head portion of the engageddental accessory is configured to face the ultraviolet light emittingsource.
 12. The sanitization device of claim 3, said device comprising:an ultraviolet light emitting source disposed about said base, andfurther comprising three or more attachment members disposed at saidbase, each of said attachment members being configured to engage withone of said dental accessories for maintaining an orientation thereofabout the base; wherein each of said attachment members is disposedadjacent to said ultraviolet light emitting source and positionedradially therefrom.
 13. The sanitization device of claim 12, whereineach of said attachment members is configured to orient the respectivedental accessory engaged therewith such that a head portion of theengaged dental accessory is configured to face the ultraviolet lightemitting source.
 14. The sanitization device of claim 3, wherein saidcover is transparent.
 15. The sanitization device of claim 3, whereinsaid cover is configured to reflect ultraviolet light emitted from theultraviolet light emitting source such that said ultraviolet light isconfigured for reuse within the sanitation chamber.
 16. The sanitizationdevice of claim 3, wherein said cover further comprises a reflectivesurface for reflecting ultraviolet light within the sanitation chamber.17. The sanitization device of claim 3, wherein said base is configuredto form a bath containing a liquid therein, wherein said base isconfigured to communicate said ultrasonic energy through said liquidtherein.
 18. The sanitization device of claim 3, further comprising acharging station and associated docking port for receiving and charginga powered dental instrument.
 19. The sanitization device of claim 3,said cover forming a portion of an external sanitization chamber;wherein said external sanitization chamber is adapted to couple with thebase for communicating the ultrasonic energy from the base to anaccessory within the sanitization chamber.